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Coast FIRE calculator, early retirement calculator & a side hustle tracker
Coast FIRE calculator, FIRE number and early retirement calculator, side hustle ideas and a side hustle tracker in one app. Answer ten quick questions and get a personal side income plan built from 273 real strategies across 20 income types, on your phone with no account. Then run the numbers with 25 calculators, from Barista FIRE and dividends to hourly to salary, and log every dollar you earn. ▶ NEW IN 25.6 • Your full plan never waits on an ad: if no video is available, the plan opens anyway • Updates download inside the app while you keep using it; one tap on Restart finishes them ▶ NEW: 25 INCOME CALCULATORS • Coast FIRE calculator and FIRE number calculator • Barista FIRE calculator • Dividend income calculator with DRIP • Compound interest and lump-sum investing scenarios • Passive income target: how much invested to earn $X a month • High-yield savings (HYSA) interest calculator • Hourly to salary and salary to hourly converters • Freelance rate calculator • Side hustle ROI and break-even • Etsy profit and fee calculator • Print-on-demand margin calculator • Gig and delivery earnings estimator (after gas and tax) • YouTube / creator earnings estimator • Spare room and Airbnb income calculator • Make $500 fast planner • Savings goal, emergency fund and 50/30/20 budget calculators • Side hustle tax estimator (US self-employment tax) • Debt payoff accelerator, raise impact and income streams planner Every result is an estimate you control — change any number and it updates instantly. ▶ NEW: SIDE HUSTLES FOR YOU Guides written for real situations, each with ranked picks, quick wins, watch-outs and a one-tap plan: • Side hustles for teachers • Side hustles for nurses • Side hustles for stay-at-home parents • Side hustles for college students and teens • Side income for retirees and veterans • Side hustles for introverts and for people with a full-time job • Side hustles with no money • Make money with your car, or with a spare room ▶ YOUR PERSONALIZED PLAN 1. Set your monthly goal and answer ten questions about time, money, skills and risk. 2. Get a plan with estimated monthly ranges, setup steps, platforms and pro tips for every strategy. 3. Start with the two or three strategies that fit your hours — the plan tells you which. 4. Log what you earn and watch your progress against the goal. ▶ 20 INCOME TYPES EXPLAINED Active, passive, semi-passive, portfolio, dividend, rental, affiliate, royalty, ad revenue, digital products, licensing, cashback, automation and more — each with startup cost, time to first dollar, difficulty and the mistakes people make. ▶ INCOME TRACKER • Log income in seconds, build a daily streak, earn badges and XP • Monthly goal progress, income health score and next-month forecast • Streak freezes for the days life gets in the way • Weekly recap, milestones and a home-screen widget • Export your log to CSV; back up and restore to a file — no account ever ▶ GLOSSARY 50 money terms in plain language: what is passive income, what is a REIT, the 3 types of income, portfolio income, semi-passive income, Coast FIRE, the 4% rule, APY vs APR and more. ▶ OFFICIAL SOURCES Every calculator, guide and glossary term links to the official rules: IRS, Social Security, CFPB, FDIC, SEC Investor.gov, FTC and SBA. US tax and retirement figures are for 2026. ▶ PRIVATE BY DESIGN Everything runs on your device. No sign-up, no email, nothing uploaded. Free with ads. A one-time purchase removes ads forever. Monthly Income Booster is educational content, not financial, tax or investment advice. Income figures are estimates; results vary.